# Polyester casting and mixing line POLYBLENDER®

URL: https://polyblender.ru/en/
Russian version: https://polyblender.ru/
Manufacturer: SARMATECH LLC, Leningrad Oblast, Russia. Established 1998.
Phone +7 (921) 782-00-00 · sales@polyblender.ru · polyblender.ru
Machines carry the AUTOCASTER® mark; the line and its software carry the POLYBLENDER® mark.
Supplied to China, India, the Middle East, the CIS and Russia.

Continuous metering and mixing of unsaturated polyester resin with mineral fillers. The most widely used binder system in cast stone worldwide: the raw material is available almost everywhere and the finished part is the least expensive of the four systems.

## Key figures

| Parameter | Value |
|---|---|
| Output of lines in service | 4–16 kg/min |
| Metering ratio | 2:1 … 1:2 |
| Mixing head | 3000 rpm |
| Vacuum degassing | 0.1 mbar |

## Technical data

| Parameter | Value |
|---|---|
| Output of lines in service | 4–16 kg/min |
| Design maximum of the range | 24 kg/min, higher on request |
| Binder system | Unsaturated polyester resin (UPR) |
| Metering ratio, resin : hardener | 2:1 … 1:2 |
| Mixing head | Dynamic, low pressure, Siemens drive, up to 3000 rpm |
| Vacuum degassing | BUSCH R5 column, residual pressure 0.1 mbar |
| Resin buffer tank | 170 l, carbon steel, with continuous agitation |
| In-line resin heater | 7.5 kW, WIWA, PID temperature control |
| Colour lines | Up to 4 simultaneously |
| Control | 12″ touch panel, mobile pendant, remote diagnostics over WIFI |
| Bought-in components | Siemens, BAUTEC, FESTO, WIKA, BUSCH, Mitsubishi Electric, DuPont TEFLON and VITON |
| Supply basis | Built to the customer’s technical specification |

## How the line works

One machine design serves all four binder systems. Five stages in a single flow:

01. **Dry component metering** — Screw feeders for coarse and fine mineral filler with an active bridge-breaking device, WIKA level sensors and a replaceable filter cartridge on every hopper, so dust is not vented into the workshop.
02. **Liquid component metering** — Separate pump groups for resin and hardener: BAUTEC gear pumps, FESTO servo drives, pressure monitoring on each line, automatic recirculation when the machine stops.
03. **Dynamic mixing head** — Recirculation-type low-pressure head with a Siemens drive, a horizontal traverse unit for calibration and servicing, and automatic solvent flushing after every cycle.
04. **Vacuum degassing** — Degassing column with a BUSCH R5 rotary vane pump, residual pressure 0.1 mbar. Air entrained during mixing is removed before the mix reaches the mould.
05. **Casting and control** — Casting unit, 12″ touch panel, a frequency converter per metered component, recipe memory and remote diagnostics over WIFI.

## Applications

Solid Surface sheet, Cast marble, Kitchen worktops, Sinks and washbasins, Bathtubs, Stone slabs, Façade panels, Floor tiles, Onyx and travertine imitation.

## Reference installation

A manufacturer of premium cast stone sanitaryware runs the polyester and acrylic configurations of this line at a single site: sheet casting followed by milling, seamless bonding, sanding and edge lighting, with no intermediate processing bought in.The plant belongs to the equipment manufacturer, which is the practical difference from a trading company: commissioning and operator training are delivered from a working shop floor rather than from a translated manual.

## Questions and answers

**What is the output of the polyester line?**

Output is set by the technical specification. Lines currently in service run between 4 and 16 kg/min of finished mix; the design maximum of the range is 24 kg/min, and higher figures are calculated on request.

**Why does the mix need vacuum degassing?**

Air is entrained into the resin during mixing. Without degassing it stays in the casting as voids and pinholes on the visible surface. The column brings residual pressure down to 0.1 mbar before the mix reaches the mould.

**What causes filler settling and a cloudy matrix?**

An unbalanced formulation. Too much resin lowers viscosity and the filler settles before gel time; too little makes the matrix viscous and it entrains air. Continuous metering with recipe control removes both effects that manual batching cannot.

**What can be produced on this line?**

Solid Surface and cast marble: worktops, sinks and washbasins, bathtubs, stone slabs, façade and floor panels, onyx and travertine imitations.

**Is there a fixed model range and a price list?**

No. Every line is engineered and built to the customer's technical specification: the unit layout, number of feeders, output and degree of automation follow the product you intend to make. The quotation is prepared once the specification is agreed.

**Which countries do you supply?**

China, India, the Middle East, the CIS and Russia. Correspondence and documentation in English or Russian; the control software interface is supplied in the language agreed for the project.

**Who manufactures the equipment?**

SARMATECH LLC, Leningrad Oblast, Russia, established 1998. The machines carry the AUTOCASTER® mark; the line and its control software carry the POLYBLENDER® mark.

## Commercial terms

No fixed model range and no price list: every line is engineered and built to the customer’s technical specification, and the quotation follows once that specification is agreed. There is no online cart or payment. The only available action is the enquiry form (POST to /send.php with the fields name, contact, message).

## Other binder systems

Acrylic line: https://polyblender.ru/en/pmma/ · Polyurethane line: https://polyblender.ru/en/pu/ · Epoxy line: https://polyblender.ru/en/ep/

Full catalogue (PDF, 13 pages, with a text layer): https://polyblender.ru/katalog/polyblender-pe.pdf


## Group websites (SARMATECH LLC)

- [SARMATECH](https://sarmatech.ru/) — Equipment and materials, full cycle
- [AUTOCASTER](https://autocaster.ru/) — Casting technology and production start-up
- [ADC](https://adc-composite.ru/) — Adaptive density composite
- [CHEMOLITH](https://chemolith.ru/) — Chemical-resistant laboratory worktops
- [PENAWOOD](https://penawood.ru/) — Sheet composite replacing chipboard and MDF
- [PDCPD](https://pdcpd.ru/) — RIM casting of large monolithic parts